AC not blowing cold air

[tmontague]

I don't know how them became so confident it is the evaporator if they cannot find the leak. Unless it is because they can find no leak so they assume it is under the dash at the evaporator.

Evaps are a pita and expensive to replace if you don't do it yourself. I'd either find a mechanic with a sniffer or use the due with uv light to really ensure the leak isn't under the hood